1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jeka94
4 years ago
15

Every night, John spends 2 hours doing homework, 30 minutes eating, and 45 minutes playing outdoors. How many minutes does he sp

end on these activities?
Mathematics
2 answers:
bazaltina [42]4 years ago
5 0
195 mins is how long he spends
boyakko [2]4 years ago
3 0
Answer: 195 mins


Explanation: there is none
You might be interested in
Please help with this math question!
Ulleksa [173]

Answer:

Step-by-step explanation:

C

5 0
3 years ago
Find a factorization of x² + 2x³ + 7x² - 6x + 44, given that<br> −2+i√√7 and 1 - i√/3 are roots.
Levart [38]

A factorization of x^4+2x^3+7x^2-6x+44 is (x^2+4x+11)(x^2-2x+4).

<h3>What are the properties of roots of a polynomial?</h3>
  • The maximum number of roots of a polynomial of degree n is n.
  • For a polynomial with real coefficients, the roots can be real or complex.
  • The complex roots of a polynomial with real coefficients always exist in a pair of conjugate numbers i.e., if a+ib is a root, then a-ib is also a root.

If the roots of the polynomial p(x)=ax^4+bx^3+cx^2+dx+e are r_1,r_2,r_3,r_4, then it can be factorized as p(x)=(x-r_1)(x-r_2)(x-r_3)(x-r_4).

Here, we are to find a factorization of p(x)=x^4+2x^3+7x^2-6x+44. Also, given that -2+i\sqrt{7} and 1-i\sqrt{3} are roots of the polynomial.

Since p(x)=x^4+2x^3+7x^2-6x+44 is a polynomial with real coefficients, so each complex root exists in a pair of conjugates.

Hence, -2-i\sqrt{7} and 1+i\sqrt{3} are also roots of the given polynomial.

Thus, all the four roots of the polynomial p(x)=x^4+2x^3+7x^2-6x+44, are: r_1=-2+i\sqrt{7}, r_2=-2-i\sqrt{7}, r_3=1-i\sqrt{3}, r_4=1+i\sqrt{3}.

So, the polynomial p(x)=x^4+2x^3+7x^2-6x+44 can be factorized as follows:

\{x-(-2+i\sqrt{7})\}\{x-(-2-i\sqrt{7})\}\{x-(1-i\sqrt{3})\}\{x-(1+i\sqrt{3})\}\\=(x+2-i\sqrt{7})(x+2+i\sqrt{7})(x-1+i\sqrt{3})(x-1-i\sqrt{3})\\=\{(x+2)^2+7\}\{(x-1)^2+3\}\hspace{1cm} [\because (a+b)(a-b)=a^2-b^2]\\=(x^2+4x+4+7)(x^2-2x+1+3)\\=(x^2+4x+11)(x^2-2x+4)

Therefore, a factorization of x^4+2x^3+7x^2-6x+44 is (x^2+4x+11)(x^2-2x+4).

To know more about factorization, refer: brainly.com/question/25829061

#SPJ9

3 0
2 years ago
Read 2 more answers
What is the value of the expression shown below?
allsm [11]
18 i sure hope this helped
4 0
3 years ago
Find the measure of D
notka56 [123]

Answer:

138 degrees

Step-by-step explanation:

angle 42 and angle D make a an angle of 180 degrees so inorder to find to D we should subtract 42 from 180

6 0
4 years ago
Can someone help me and show your work!!! PLEASE!!!! 50 POINTS
crimeas [40]

None of the above

My mom just helped me with it, so I don't know if it's exactly alright. She said it was 20, but theres no 20 as I checked, and I don't know if she didn't right. I got a whole 25.

ANSWERS I THINK

_______________

I think its mainly a,e, or b. Mainly b?

6 0
3 years ago
Read 2 more answers
Other questions:
  • Haley was helping her mom cook dinner if they started cooking at her 1:25and took 2hours and 35 minutes to finish what time was
    12·1 answer
  • I’m stressing someone please help now
    8·2 answers
  • The baker at flour power needs 2.5 kilograms of wheat flour to make 6 loaves of bread. she has 1,750 grams of wheat flour. how m
    11·2 answers
  • QUESTION 5 The temperature was -7°C in the morning. The temperature dropped 3°C by sunset. What was the temperature at sunset? +
    11·1 answer
  • Write a recursive formula for the sequence -2,4,-8, 16, ...
    12·1 answer
  • If u study 12 mins which equals 40% how many more mins must i study to get 100%
    11·1 answer
  • What is the intermediate step in the form (x + a)2 = b as a result of completing the
    9·1 answer
  • On Tuesday, the price of oranges at a grocery store was $1.20 per pound. Today, the oranges at the same grocery store are on sal
    5·1 answer
  • HELP PLSPLSPSL check image
    9·1 answer
  • Solve the following for x please!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!